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IPv4 Address

104.21.52.214

Within
104.21.0.0/17
CIDR
/17 · 32.8K IPs
ASN
Cloudflare, Inc.
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

73/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Not on any threat blocklist +5
  • Established allocation (12y) +3
  • Trust score 73 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Exposure · open ports & services

Internet-facing services Shodan observed on this IP.

cdn
PortServiceProduct
80/tcp http
443/tcp https
2052/tcp auto
2053/tcp auto
2082/tcp http-simple-new
2083/tcp https-simple-new
2086/tcp http-simple-new
2087/tcp language-server-protocol
2095/tcp auto
8080/tcp http-simple-new
8443/tcp https CloudFlare
8880/tcp https-simple-new

Exposure data via Shodan · last seen 2026-08-18.

Network Allocation for 104.21.52.214

CIDR range
104.21.0.0/17
IP range (int)
1,746,206,720 — 1,746,239,487
Prefix length
/17
Organization
Cloudflare, Inc.
ASN
AS13335
ASN name
Cloudflare, Inc.
Location
United States
Regional Internet Registry
ARIN
Allocated
2014-03-28
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-06-09 06:06:37

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
11,220
Last seen
2026-08-23 18:32:36

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 New Allocation US

See the full history for 104.21.0.0/17.

Frequently Asked Questions

Who owns 104.21.52.214?

104.21.52.214 is allocated to Cloudflare, Inc. (AS13335), registered in United States.

Where is 104.21.52.214 located?

The geolocation for 104.21.52.214 maps to United States based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 104.21.52.214 on?

104.21.52.214 belongs to the 104.21.0.0/17 network block announced by AS13335. This range contains 32,768 addresses.

Does 104.21.52.214 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Last updated: 2026-08-18 06:19:36 UTC
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